Commit beaac6f3 authored by Jason Wang's avatar Jason Wang Committed by Sascha Hauer
Browse files

mx51_3ds: Add support for the imx51 3-stack board 



3-stack is a reference board from Freescale for their i.MX51 SoC.

Add board definition, Kconfig and Makefile to enable Freescale 3-stack
board.

Boot tested on a i.MX51 3-stack Rev2.0 board

Signed-off-by: default avatarJason Wang <jason77.wang@gmail.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 3fac6cf3

arch/arm/mach-mx5/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -15,4 +15,10 @@ config MACH_MX51_BABBAGE 
	  u-boot. This includes specific configurations for the board and its

	  peripherals.



config MACH_MX51_3DS

	bool "Support MX51PDK (3DS)"

	select MXC_DEBUG_BOARD

	help

	  Include support for MX51PDK (3DS) platform. This includes specific

	  configurations for the board and its peripherals.

endif

arch/arm/mach-mx5/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -6,4 +6,4 @@ 
obj-y   := cpu.o mm.o clock-mx51.o devices.o



obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o

obj-$(CONFIG_MACH_MX51_3DS) += board-mx51_3ds.o

arch/arm/mach-mx5/board-mx51_3ds.c

0 → 100644
+103 −0
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/*

 * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>

 *

 * The code contained herein is licensed under the GNU General Public

 * License. You may obtain a copy of the GNU General Public License

 * Version 2 or later at the following locations:

 *

 * http://www.opensource.org/licenses/gpl-license.html

 * http://www.gnu.org/copyleft/gpl.html

 */



#include <linux/irq.h>

#include <linux/platform_device.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/time.h>



#include <mach/hardware.h>

#include <mach/common.h>

#include <mach/iomux-mx51.h>

#include <mach/imx-uart.h>

#include <mach/3ds_debugboard.h>



#include "devices.h"



#define EXPIO_PARENT_INT	(MXC_INTERNAL_IRQS + GPIO_PORTA + 6)



static struct pad_desc mx51_3ds_pads[] = {

	/* UART1 */

	MX51_PAD_UART1_RXD__UART1_RXD,

	MX51_PAD_UART1_TXD__UART1_TXD,

	MX51_PAD_UART1_RTS__UART1_RTS,

	MX51_PAD_UART1_CTS__UART1_CTS,



	/* UART2 */

	MX51_PAD_UART2_RXD__UART2_RXD,

	MX51_PAD_UART2_TXD__UART2_TXD,

	MX51_PAD_EIM_D25__UART2_CTS,

	MX51_PAD_EIM_D26__UART2_RTS,



	/* UART3 */

	MX51_PAD_UART3_RXD__UART3_RXD,

	MX51_PAD_UART3_TXD__UART3_TXD,

	MX51_PAD_EIM_D24__UART3_CTS,

	MX51_PAD_EIM_D27__UART3_RTS,



	/* CPLD PARENT IRQ PIN */

	MX51_PAD_GPIO_1_6__GPIO_1_6,

};



/* Serial ports */

#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)

static struct imxuart_platform_data uart_pdata = {

	.flags = IMXUART_HAVE_RTSCTS,

};



static inline void mxc_init_imx_uart(void)

{

	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	mxc_register_device(&mxc_uart_device1, &uart_pdata);

	mxc_register_device(&mxc_uart_device2, &uart_pdata);

}

#else /* !SERIAL_IMX */

static inline void mxc_init_imx_uart(void)

{

}

#endif /* SERIAL_IMX */



/*

 * Board specific initialization.

 */

static void __init mxc_board_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,

					ARRAY_SIZE(mx51_3ds_pads));

	mxc_init_imx_uart();



	if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))

		printk(KERN_WARNING "Init of the debugboard failed, all "

				    "devices on the board are unusable.\n");

}



static void __init mx51_3ds_timer_init(void)

{

	mx51_clocks_init(32768, 24000000, 22579200, 0);

}



static struct sys_timer mxc_timer = {

	.init	= mx51_3ds_timer_init,

};



MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")

	/* Maintainer: Freescale Semiconductor, Inc. */

	.phys_io = MX51_AIPS1_BASE_ADDR,

	.io_pg_offst = ((MX51_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,

	.boot_params = PHYS_OFFSET + 0x100,

	.map_io = mx51_map_io,

	.init_irq = mx51_init_irq,

	.init_machine = mxc_board_init,

	.timer = &mxc_timer,

MACHINE_END